Abstract: A control system in a four-wheel-drive motor vehicle for the distribution of drive forces at least from a drive of the motor vehicle to wheels of the first and second axles of the motor vehicle, at least including: a distribution device for distributing the drive forces to the first and second axles; rotation rate sensors for detecting the rotation rate of the two axles and/or the wheels of the motor vehicle, a central control device that is connected to a distribution controller and the sensors and a vehicle communication system, wherein the distribution controller is attached to the distribution unit and performs control both to a setpoint torque and to a setpoint rotation rate, and thus—in a drive-dependent and switchable manner—determines a distribution ratio of the drive forces to be distributed to the first and second axles on the basis of the ratio between the torque and the setpoint torque or between the setpoint rotation rate and the setpoint rotation rate.

Abstract: A method for forming a component utilizing ultra-high strength steel and components formed by the method. The method includes the step of providing a flat blank of ultra-high strength 22MnB5 steel. The next step of the method is cold forming the flat blank into an unfinished shape of a component while the blank is in an unhardened state. Then, heating the unfinished shape of the component and generating a spline form thereon. The method proceeds by forming a finished shape of the component using a quenching die resulting in a fine-grained martensitic component material structure and enabling net shape processing to establish final geometric dimensions of the component.

Abstract: A component and method for forming the component utilizing ultra-high strength steel is provided. The method includes the steps of providing a blank of ultra-high strength steel and forming the blank into an unfinished component. Next, heating the unfinished component and moving an inner tooling member and an outer tooling member relative to one another to sandwich the heated component therebetween. Further, moving a punch member from a withdrawn, unactuated position to an extended, actuated position to contact the component while sandwiched between the inner and outer tooling members to form a feature including at least one of a thickened region having an increased thickness relative to an adjacent region, a recessed annular groove, a recessed pocket, a through hole, a flange, a through hole having a tab extending outwardly therefrom, or spline teeth. Then, quenching the feature.

Abstract: A selectable one-way clutch includes a clutch module and at least one electromagnetic actuator module. Each electromagnetic actuator module includes at least one electromagnetic actuator assembly having a coil assembly, a locking strut, and a connection member mechanically interconnected to the locking strut for moving it between released and deployed positions in response to energization of the coil assembly.

Abstract: An integrated pinion/bearing/coupling (PBC) assembly for use with a hypoid gearset in power transfer assemblies of motor vehicles having mounting features and venting features. The integrated PBC assembly includes a hollow pinion unit made of steel and including a pinion shaft segment and a pinion gear segment, and a coupling unit having a hub segment made of aluminum. A brazing sleeve is used to braze the aluminum hub segment of the coupling unit to the steel pinion shaft segment of the pinion unit. The PBC assembly can further include a constant velocity joint (CVJ) unit connected to, or formed as part of, the coupling unit.

Abstract: An electric water pump having a motor with an axially moveable rotor unit. A rotary pump member is fixed for axial movement with the rotor unit to vary its position within a pump chamber so as to vary the flow rate through the pump chamber.

Abstract: The present invention relates to a method for correcting a drag torque curve of at least one rotatable machine element of which the drag torque is dependent on the rotational speed of the machine element, wherein the drag torque curve has a plurality of rotational speed ranges which are different from one another, in which the drag torque curve in each rotational speed range is corrected between a measured rotational speed of the machine element and a calculated rotational speed of the machine element on the basis of a rotational speed deviation in the respective rotational speed range.

Abstract: A transfer case for a four-wheel drive vehicle having a disconnectable secondary axle assembly. The transfer case is configured to include a pumpless lubrication sump maintained in relation to a mainshaft for lubricating rotary components surrounding the mainshaft.

Abstract: A rotary valve comprising a housing with a valve chamber, wherein the valve chamber has at least one inlet and at least one outlet, wherein the inlet and/or the outlet are at least partially closable, as required, by a valve body which is rotatable about an axis and is arranged in the valve chamber, wherein, on that side of the housing facing the valve body, the inlet and/or the outlet is enclosed by a sliding seal, and wherein the sliding seal bears sealingly, under elastic preload, against that surface of the valve body facing the housing.

Abstract: A flexplate assembly comprising a central plate having a general disc shape disposed about and extending radially from an axis. The central plate has a first radial width. A ring gear is annularly secured about the central plate and presents an outer circumference that defines a plurality of ring teeth extending therefrom. At least one noise plate is disposed adjacent to the central plate and extends circumferentially about the axis for reducing vibrations and noise from the flexplate assembly. The noise plate has a second radial width that is at least one half of the first radial width of the central plate. A method of constructing such a flexplate assembly is also provided.

Abstract: A differential gear for a motor vehicle, comprising an outer housing, the outer housing being drive-connected to an input element, an inner housing, the inner housing being mounted rotatably at least partially within the outer housing, at least two compensating elements and at least two output elements, the compensating elements and the output elements being enclosed at least partially by the inner housing, and the inner housing being drive-connected to the output elements via the compensating elements, and also at least one switching unit, the switching unit being arranged on the inner housing in such a way that, starting from a freewheeling position, it can selectively be drive-connected to the outer housing or to the outer housing and one of the two output elements.

Abstract: A stator for an electric machine comprising a rotor and stator poles. At least one partial amount of stator poles each comprises a pole winding and a permanent magnet unit. A first magnetic flux induced by the permanent magnet unit is superimposed by a second magnetic flux is an electric voltage is applied to the pole winding or an electrical current is injected into the pole winding. A recess is arranged in the permanent magnet unit, which recess faces the rotor. An electric machine comprising a stator according to the invention, wherein the rotor is designed to change a magnetic resistance of a magnetic circuit, which extends through a permanent magnet unit of stator poles of the stator, according to the position of the rotor.

Abstract: A power transfer assembly for a motor vehicle includes a clutch protection system to prevent damage to an actively-controlled multi-plate mode clutch of the power transfer assembly. The clutch protection system includes a transfer case control module (TCCM) and an engine control module (ECM) configured to regulate the distribution of torque applied from an engine to front and rear output shafts of the power transfer assembly. The TCCM is in operable communication with the engine control module ECM, wherein TCCM is configured to detect slip in the actively-controlled multi-plate friction clutch and to communicate with the ECM to selectively reduce the output torque of the engine in response to detected slip.

Abstract: A device for sealing a valve for controlling a coolant of an internal combustion engine of a motor vehicle is described, which valve is mounted in a cooling system together with a valve housing, wherein the valve housing contains, at the inlet and/or the outlet side, a sealing ring which has an annular wall and a spaced annular lip extending away from the annular wall from a contact point.

Abstract: A transmission arrangement (1) for the controllable distribution of drive torque from an input element (2) to at least one output element (3), comprising a first transmission part region (4), namely a planetary gear mechanism, and an additional drive unit (5), the first transmission part region (4) being drive-connected directly or indirectly to the input element (2) and to the additional drive unit (5), and the first transmission part region (4) being drive-connected directly or indirectly to the output element (3).

Abstract: A clutch arrangement for a drive train of a motor vehicle comprising a switching element with a control geometry, an actuator, an actuating element, and a running roller. The switching element is arranged on an output element such that it is fixed in terms of rotation but can be moved axially into a first switching position and into a second switching position, an actuator operable for movement of the switching element from the first switching position into the second switching position and/or vice versa. The actuating element, via the actuator, actuates movement of the switching element from the first switching position into the second switching position and/or vice versa. The running roller is arranged on the actuating element.

Abstract: Wet-running clutch unit for a motor vehicle comprising a friction clutch with at least one first friction disc which is assigned to a drive element and at least one second friction disc which is assigned to an output element, an alternating arrangement of the first friction disc and the second friction disc forming a friction disc assembly which can be brought into a frictional connection, and a fluid distributor, the fluid distributor being arranged fixedly on the drive element and having at least one fluid chamber, the first friction disc having at least one first recess and the second friction disc having at least one second recess), the first recess of the first friction disc and the second recess of the second friction disc overlapping in the radial and axial direction, with the result that at least one friction disc assembly recess is formed, the fluid chamber of the fluid distributor being configured in such a way that it extends in the axial direction into the friction disc assembly recess.

Abstract: The subject disclosure relates to a coil module assembly for a bi-directional clutch assembly having at least one active clutch. The coil module assembly includes a housing having an actuator housing portion and a PCB housing portion. An electromagnetic actuator is disposed in the actuator housing portion for effectuating pivotal movement of the active strut from an unlocked position to a locked position in response to an energization of the electromagnetic actuator. An integrated printed circuit board (PCB) is disposed in the PCB housing portion and is in electrical communication with the electromagnetic actuator for selectively energizing the electromagnetic actuator. The housing further includes a thermally decoupled housing portion which is disposed between the actuator housing portion and the PCB housing portion for thermally decoupling, i.e., reducing heat transfer, from the electromagnetic actuator to the PCB during selective energization of the electromagnetic actuator.

Abstract: A power transmission assembly includes an input member adapted to receive drive torque from a source of torque, an output member adapted to provide drive torque to an output device and a bi-directional roller clutch including a first ring fixed for rotation with one of the input and output members. A second ring is spaced apart from the other of the input and output members. Rollers are positioned in aligned cam tracks formed in facing surfaces of the first and second rings. Neither the first ring nor the second ring support the input member or the output member on the other. The second ring may circumferentially index relative to the first ring for causing the rollers to ride up the cam tracks and force the second ring to frictionally engage the other of the input and output members, thereby establishing a drive connection between the input and output members.

Abstract: The invention relates to a clutch assembly for a powertrain of a motor vehicle, comprising at least one clutch and at least one actuation device. The clutch can be brought into an open position and/or a closed position by means of the actuation device such that a first sub-region of the powertrain and a second sub-region of the powertrain are decoupled and/or coupled. The actuation device comprises an actuation element and a control element which is connected to the clutch. The control element is arranged in a guidable manner in a guide slot with respect to the actuation element, and the control element is held in the region of the guide slot by means of an energy storage element, which counteracts a movement of the control element out of a first stop position along the guide slot, in the closed position of the clutch. The invention also relates to a method for decoupling the first sub-region of the powertrain from the second sub-region of the powertrain by means of the clutch assembly.